ubuntu-cve-2025-57767
Vulnerability from osv_ubuntu
Published
2025-08-28 16:15
Modified
2026-05-20 15:22
Summary
Details
Asterisk is an open source private branch exchange and telephony toolkit. Prior to versions 20.15.2, 21.10.2, and 22.5.2, if a SIP request is received with an Authorization header that contains a realm that wasn't in a previous 401 response's WWW-Authenticate header, or an Authorization header with an incorrect realm was received without a previous 401 response being sent, the get_authorization_header() function in res_pjsip_authenticator_digest will return a NULL. This wasn't being checked before attempting to get the digest algorithm from the header which causes a SEGV. This issue has been patched in versions 20.15.2, 21.10.2, and 22.5.2. There are no workarounds.
Severity
7.5 (High)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "asterisk",
"binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
},
{
"binary_name": "asterisk-config",
"binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
},
{
"binary_name": "asterisk-dahdi",
"binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
},
{
"binary_name": "asterisk-mobile",
"binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
},
{
"binary_name": "asterisk-modules",
"binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
},
{
"binary_name": "asterisk-mp3",
"binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
},
{
"binary_name": "asterisk-mysql",
"binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
},
{
"binary_name": "asterisk-ooh323",
"binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
},
{
"binary_name": "asterisk-voicemail",
"binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
},
{
"binary_name": "asterisk-voicemail-imapstorage",
"binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
},
{
"binary_name": "asterisk-voicemail-odbcstorage",
"binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
},
{
"binary_name": "asterisk-vpb",
"binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "asterisk",
"purl": "pkg:deb/ubuntu/asterisk@1:13.1.0~dfsg-1.1ubuntu4.1+esm1?arch=source\u0026distro=esm-apps/xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1:13.1.0~dfsg-1.1ubuntu3",
"1:13.1.0~dfsg-1.1ubuntu4",
"1:13.1.0~dfsg-1.1ubuntu4.1",
"1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "asterisk",
"binary_version": "1:13.18.3~dfsg-1ubuntu4"
},
{
"binary_name": "asterisk-config",
"binary_version": "1:13.18.3~dfsg-1ubuntu4"
},
{
"binary_name": "asterisk-dahdi",
"binary_version": "1:13.18.3~dfsg-1ubuntu4"
},
{
"binary_name": "asterisk-mobile",
"binary_version": "1:13.18.3~dfsg-1ubuntu4"
},
{
"binary_name": "asterisk-modules",
"binary_version": "1:13.18.3~dfsg-1ubuntu4"
},
{
"binary_name": "asterisk-mp3",
"binary_version": "1:13.18.3~dfsg-1ubuntu4"
},
{
"binary_name": "asterisk-mysql",
"binary_version": "1:13.18.3~dfsg-1ubuntu4"
},
{
"binary_name": "asterisk-ooh323",
"binary_version": "1:13.18.3~dfsg-1ubuntu4"
},
{
"binary_name": "asterisk-tests",
"binary_version": "1:13.18.3~dfsg-1ubuntu4"
},
{
"binary_name": "asterisk-voicemail",
"binary_version": "1:13.18.3~dfsg-1ubuntu4"
},
{
"binary_name": "asterisk-voicemail-imapstorage",
"binary_version": "1:13.18.3~dfsg-1ubuntu4"
},
{
"binary_name": "asterisk-voicemail-odbcstorage",
"binary_version": "1:13.18.3~dfsg-1ubuntu4"
},
{
"binary_name": "asterisk-vpb",
"binary_version": "1:13.18.3~dfsg-1ubuntu4"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "asterisk",
"purl": "pkg:deb/ubuntu/asterisk@1:13.18.3~dfsg-1ubuntu4?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1:13.17.2~dfsg-1ubuntu1",
"1:13.17.2~dfsg-2ubuntu1",
"1:13.18.1~dfsg-1ubuntu1",
"1:13.18.3~dfsg-1ubuntu1",
"1:13.18.3~dfsg-1ubuntu2",
"1:13.18.3~dfsg-1ubuntu3",
"1:13.18.3~dfsg-1ubuntu4"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "asterisk",
"binary_version": "1:16.2.1~dfsg-2ubuntu1"
},
{
"binary_name": "asterisk-config",
"binary_version": "1:16.2.1~dfsg-2ubuntu1"
},
{
"binary_name": "asterisk-dahdi",
"binary_version": "1:16.2.1~dfsg-2ubuntu1"
},
{
"binary_name": "asterisk-mobile",
"binary_version": "1:16.2.1~dfsg-2ubuntu1"
},
{
"binary_name": "asterisk-modules",
"binary_version": "1:16.2.1~dfsg-2ubuntu1"
},
{
"binary_name": "asterisk-mp3",
"binary_version": "1:16.2.1~dfsg-2ubuntu1"
},
{
"binary_name": "asterisk-mysql",
"binary_version": "1:16.2.1~dfsg-2ubuntu1"
},
{
"binary_name": "asterisk-ooh323",
"binary_version": "1:16.2.1~dfsg-2ubuntu1"
},
{
"binary_name": "asterisk-tests",
"binary_version": "1:16.2.1~dfsg-2ubuntu1"
},
{
"binary_name": "asterisk-voicemail",
"binary_version": "1:16.2.1~dfsg-2ubuntu1"
},
{
"binary_name": "asterisk-voicemail-imapstorage",
"binary_version": "1:16.2.1~dfsg-2ubuntu1"
},
{
"binary_name": "asterisk-voicemail-odbcstorage",
"binary_version": "1:16.2.1~dfsg-2ubuntu1"
},
{
"binary_name": "asterisk-vpb",
"binary_version": "1:16.2.1~dfsg-2ubuntu1"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "asterisk",
"purl": "pkg:deb/ubuntu/asterisk@1:16.2.1~dfsg-2ubuntu1?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1:16.2.1~dfsg-2build2",
"1:16.2.1~dfsg-2build3",
"1:16.2.1~dfsg-2ubuntu1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "asterisk",
"binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
},
{
"binary_name": "asterisk-config",
"binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
},
{
"binary_name": "asterisk-dahdi",
"binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
},
{
"binary_name": "asterisk-mobile",
"binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
},
{
"binary_name": "asterisk-modules",
"binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
},
{
"binary_name": "asterisk-mp3",
"binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
},
{
"binary_name": "asterisk-mysql",
"binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
},
{
"binary_name": "asterisk-ooh323",
"binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
},
{
"binary_name": "asterisk-tests",
"binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
},
{
"binary_name": "asterisk-vpb",
"binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "asterisk",
"purl": "pkg:deb/ubuntu/asterisk@1:18.10.0~dfsg+~cs6.10.40431411-2?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1:16.16.1~dfsg-2",
"1:16.16.1~dfsg-4",
"1:16.16.1~dfsg-4build1",
"1:16.16.1~dfsg+~2.10-1",
"1:18.10.0~dfsg+~cs6.10.40431411-2"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "asterisk",
"binary_version": "1:20.6.0~dfsg+~cs6.13.40431414-2build5"
},
{
"binary_name": "asterisk-config",
"binary_version": "1:20.6.0~dfsg+~cs6.13.40431414-2build5"
},
{
"binary_name": "asterisk-dahdi",
"binary_version": "1:20.6.0~dfsg+~cs6.13.40431414-2build5"
},
{
"binary_name": "asterisk-mobile",
"binary_version": "1:20.6.0~dfsg+~cs6.13.40431414-2build5"
},
{
"binary_name": "asterisk-modules",
"binary_version": "1:20.6.0~dfsg+~cs6.13.40431414-2build5"
},
{
"binary_name": "asterisk-mp3",
"binary_version": "1:20.6.0~dfsg+~cs6.13.40431414-2build5"
},
{
"binary_name": "asterisk-mysql",
"binary_version": "1:20.6.0~dfsg+~cs6.13.40431414-2build5"
},
{
"binary_name": "asterisk-ooh323",
"binary_version": "1:20.6.0~dfsg+~cs6.13.40431414-2build5"
},
{
"binary_name": "asterisk-tests",
"binary_version": "1:20.6.0~dfsg+~cs6.13.40431414-2build5"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "asterisk",
"purl": "pkg:deb/ubuntu/asterisk@1:20.6.0~dfsg+~cs6.13.40431414-2build5?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1:20.4.0~dfsg+~cs6.13.40431414-2",
"1:20.5.0~dfsg+~cs6.13.40431414-1",
"1:20.5.1~dfsg+~cs6.13.40431414-1",
"1:20.5.2~dfsg+~cs6.13.40431414-1",
"1:20.6.0~dfsg+~cs6.13.40431414-1",
"1:20.6.0~dfsg+~cs6.13.40431414-2",
"1:20.6.0~dfsg+~cs6.13.40431414-2build3",
"1:20.6.0~dfsg+~cs6.13.40431414-2build4",
"1:20.6.0~dfsg+~cs6.13.40431414-2build5"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "asterisk",
"binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
},
{
"binary_name": "asterisk-config",
"binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
},
{
"binary_name": "asterisk-dahdi",
"binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
},
{
"binary_name": "asterisk-mobile",
"binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
},
{
"binary_name": "asterisk-modules",
"binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
},
{
"binary_name": "asterisk-mp3",
"binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
},
{
"binary_name": "asterisk-mysql",
"binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
},
{
"binary_name": "asterisk-ooh323",
"binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
},
{
"binary_name": "asterisk-tests",
"binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "asterisk",
"purl": "pkg:deb/ubuntu/asterisk@1:22.5.2~dfsg+~cs6.15.60671435-1?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1:22.2.0~dfsg+~cs6.15.60671435-2",
"1:22.3.0~dfsg+~cs6.15.60671435-1",
"1:22.4.1~dfsg+~cs6.15.60671435-1",
"1:22.4.1~dfsg+~cs6.15.60671435-2",
"1:22.5.1~dfsg+~cs6.15.60671435-1",
"1:22.5.2~dfsg+~cs6.15.60671435-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "asterisk",
"binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
},
{
"binary_name": "asterisk-config",
"binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
},
{
"binary_name": "asterisk-dahdi",
"binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
},
{
"binary_name": "asterisk-mobile",
"binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
},
{
"binary_name": "asterisk-modules",
"binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
},
{
"binary_name": "asterisk-mp3",
"binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
},
{
"binary_name": "asterisk-mysql",
"binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
},
{
"binary_name": "asterisk-ooh323",
"binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
},
{
"binary_name": "asterisk-tests",
"binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "asterisk",
"purl": "pkg:deb/ubuntu/asterisk@1:22.5.2~dfsg+~cs6.15.60671435-1?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1:22.5.2~dfsg+~cs6.15.60671435-1"
]
}
],
"aliases": [],
"details": "Asterisk is an open source private branch exchange and telephony toolkit. Prior to versions 20.15.2, 21.10.2, and 22.5.2, if a SIP request is received with an Authorization header that contains a realm that wasn\u0027t in a previous 401 response\u0027s WWW-Authenticate header, or an Authorization header with an incorrect realm was received without a previous 401 response being sent, the get_authorization_header() function in res_pjsip_authenticator_digest will return a NULL. This wasn\u0027t being checked before attempting to get the digest algorithm from the header which causes a SEGV. This issue has been patched in versions 20.15.2, 21.10.2, and 22.5.2. There are no workarounds.",
"id": "UBUNTU-CVE-2025-57767",
"modified": "2026-05-20T15:22:56Z",
"published": "2025-08-28T16:15:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2025-57767"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-57767"
},
{
"type": "REPORT",
"url": "https://github.com/asterisk/asterisk/security/advisories/GHSA-64qc-9x89-rx5j"
},
{
"type": "REPORT",
"url": "https://github.com/asterisk/asterisk/pull/1407"
},
{
"type": "REPORT",
"url": "https://github.com/asterisk/asterisk/commit/02993717b08f899d4aca9888062f35dfb198584f"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2025-57767"
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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